For me, my very first and only 'audiophile' can was the HD555 which I'd bought years ago.....perhaps 10 years back I guess. Anyway, that and the Ety ER6 were the only serious can and IEM I'd gotten. Fast track forward to end October, early November last year, I was bitten by this audio bug and I simply took off, got a HD800 to kick things off. Yes, I found the bass to be anemic at first, but appreciated its wide soundstage (took me a while to get used to and appreciate its sublime bass).
Started buying cans left, right and center, and somewhere along the way, landed a HD700.....which at first, I hadn't quite like. I thought it sounded veiled, due to my using very sparkly treble cans like the ATH-AD2000, the HD800 and AKG K812. Now, when I listen to it, it doesn't sound veiled anymore, in fact, I prefer it over the ATH-AD2000 simply because it's as highly detailed, yet less fatiguing to my ears. The bass, as others has said, is textured and actually quite powerful in its own right. Even with my recent acquisition of both the Denon D2k/D7k, Fidelio X1 and the LCD2.2 I'd gotten in January, I feel the bass on the HD700 is is sufficiently good enough even against these cans which are known to have stronger bass.
Sure, IF I want more powerful bass, I'd switch to my LCD2 or Denons, but IF these weren't bassy enough (perhaps I was in a basshead mood), I could always put on my V-Moda Crossfade M100. Right now, I'm listening to some heavy bass tracks and while the HD700 can't produce feet thumping bass like my Audeze and Denons, it still sounds good enough for me to be bopping my head to the beat.